Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent
1982-03-04
1983-07-26
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Electron or ion beam deflecting type
335213, 250396ML, H01F 700
Patent
active
043956912
ABSTRACT:
Deflection of an electron beam from axis 28 is controlled by electromagnetic deflection saddle coils 24, 26. Interference with deflection by surrounding mass of lens 22 is overcome by compensation coils 42, 44. The deflection coils and compensation coils are shaped and sized so that their own conductive properties do not distort the deflection magnetic fields. This is accomplished by equalizing between the deflection and compensation coils, the change in magnetic field during coil current penetration and by equalizing the penetration time constants for both sets of windings.
REFERENCES:
patent: 3930181 (1975-12-01), Pfeiffer
patent: 4245159 (1981-01-01), Beisswenger
Bethurum William J.
Dicke, Jr. Allen A.
Harris George
Hughes Aircraft Company
Karambelas Anthony W.
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